1421321040220 has 12 divisors (see below), whose sum is σ = 2984774184504. Its totient is φ = 568528416080.

The previous prime is 1421321040199. The next prime is 1421321040263. The reversal of 1421321040220 is 220401231241.

It is a junction number, because it is equal to n+sod(n) for n = 1421321040191 and 1421321040200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35533025986 + ... + 35533026025.

It is an arithmetic number, because the mean of its divisors is an integer number (248731182042).

Almost surely, 2^{1421321040220} is an apocalyptic number.

1421321040220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421321040220 is an abundant number, since it is smaller than the sum of its proper divisors (1563453144284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421321040220 is a wasteful number, since it uses less digits than its factorization.

1421321040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71066052020 (or 71066052018 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1421321040220 its reverse (220401231241), we get a palindrome (1641722271461).

The spelling of 1421321040220 in words is "one trillion, four hundred twenty-one billion, three hundred twenty-one million, forty thousand, two hundred twenty".